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Ques:- In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 per kg?
A. 3 : 7
B. 5 : 7
C. 7 : 3
D. 7 : 5
Ques:- Find out the wrong number in each sequence:
16, 32, 64, 81, 100, 144, 190
16, 32, 64, 81, 100, 144, 190
A. 36
B. 81
C. 100
D. 190